Learned something new over the weekend. I always thought my sure grip was the cone style so I never bothered taking the diff apart to inspect. I don't even know why I thought it was the cone type. I've had it forever! Well after trying out a new street recently opened near the house with a 1 mile straight, I'm happy to say the road is smooth, even at high speed. I give the road work guys and A+, hahaha. After 3 rips I noticed an odd sound coming from the rear end. Considering I was planning on autocross on Sunday, I figured it would be a good idea to inspect further. Well, it turns out it is a clutch type diff, and they are slap worn out. I'm assuming the spider gears didn't care for the additional clearance so they self destructed. Honestly, the diff is literally the only component on the car I've never inspected or rebuilt. I can't complain, it's my own ignorance/neglect. Also got lucky catching it before debris destroyed the ring and pinion. Tough year breaking stuff. First the lifter in the small block and now this. Let's hope that's it for a while.